CN102926387A - Mounting and guiding device and positioning method for underwater circuit purlins of steel sheet pile cofferdam - Google Patents
Mounting and guiding device and positioning method for underwater circuit purlins of steel sheet pile cofferdam Download PDFInfo
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- CN102926387A CN102926387A CN2012104047690A CN201210404769A CN102926387A CN 102926387 A CN102926387 A CN 102926387A CN 2012104047690 A CN2012104047690 A CN 2012104047690A CN 201210404769 A CN201210404769 A CN 201210404769A CN 102926387 A CN102926387 A CN 102926387A
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Abstract
The invention discloses a mounting and guiding device and a positioning method for underwater circuit purlins of a steel sheet pile cofferdam. The mounting and guiding device comprises vertical guide beams, an upper end transverse support arranged on the inner sides of the tops of the vertical guide beams, a lower end transverse support arranged on the inner sides of the bottoms of the vertical guide beams and elevation positioning brackets arranged on the outer sides of the bottoms of the vertical guide beams; and guide beam lower end supporting arc plates are arranged on the inner sides of the lower end transverse support. According to the mounting and guiding device, single layers of circuit purlins are wholly manufactured in the back, the vertical guide beams are arranged by relying on drilling pile steel casings, the distance among all layers of circuit purlins is guaranteed by vertical supporting rods among the circuit purlins, and the steel sheet pile circuit purlins are wholly arranged layer by layer from bottom to top, so that the technical problems that before steel sheet piles are inserted and knocked, the underwater circuit purlins are invisible during mounting and difficult to position, and the distance among the circuit purlins is difficult to control in the prior art are solved; and the mounting and guiding device and the positioning method have the advantages that the circuit purlin mounting speed is high, and the positioning precision is high.
Description
Technical field
The present invention relates to steel sheet-pile cofferdam and enclose purlin installation Technology field under water, be specifically related to a kind of steel sheet-pile cofferdam and enclose purlin installation and guide device and localization method under water.
Technical background
For the profundal zone steel sheet pile cofferdam construction, traditional job practices is that interim guiding device is set before the inserted to play steel sheet pile, after steel sheet pile inserted to play closure, adopts contrary sequence method, and cofferdam and support bar from top to bottom successively are installed while drawing water.Steel sheet pile is along with the carrying out of pump process, and distortion builds up increase, and internal force increases, and in order to control the deformation and internal stresses of its pump process Steel Sheet Pile, generally is to adopt the mode of enclosing the purlin support system that arranges of encrypting.This has just caused enclosing purlin and has supported more, construct complicated, long construction period.
Summary of the invention
The objective of the invention is for above-mentioned technical problem, provide a kind of steel sheet-pile cofferdam to enclose purlin installation and guide device and localization method under water, these apparatus and method can reduce the quantity of enclosing purlin, reduction of erection time.
For realizing this purpose, the designed steel sheet-pile cofferdam of the present invention encloses the purlin installation and guide device under water, comprise vertical nose girder, be arranged on vertical nose girder inside top the upper end horizontal support, be arranged on inboard, vertical nose girder bottom the lower end horizontal support, be arranged on the elevation location bracket in the vertical nose girder bottom outside, the inboard of described lower end horizontal support is provided with the nose girder lower end and supports arc.
The top of described elevation location bracket is provided with vertical cushion block.
A kind of utilize that above-mentioned steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that, it comprises the steps:
Step 1: utilize the steel casing of the pier periphery of drilled pile construction stage use, as the guide pile of guiding device;
Step 2: enclose the absolute altitude of purlin and the design attitude of steel sheet-pile cofferdam according to the bottom steel sheet pile, guiding device upper end horizontal support is fixed on the corresponding position of steel casing, the nose girder lower end of guiding device is supported arc and is matched with the steel casing;
Step 3: be fixedly connected with bottom at the top that the bottom steel sheet pile encloses purlin in advance and enclose support bar between purlin;
Step 4: with the bottom steel sheet pile enclose purlin along vertical nose girder lifting, transfer to guiding device elevation location bracket top, again the top layer steel sheet pile is enclosed purlin along vertical nose girder lifting, transfer to bottom and enclose between purlin on the support bar;
Step 5: after steel sheet pile encloses the purlin installation, carry out the construction of steel sheet pile inserted to play, until steel sheet pile cofferdam construction is finished in closure.
Simultaneously be fixedly connected with the intermediate layer at the top that the intermediate layer steel sheet pile encloses purlin in advance in the described step 3 and enclose support bar between purlin; After the bottom steel sheet pile encloses purlin and is mounted to elevation location bracket top, the intermediate layer steel sheet pile is enclosed purlin lift to bottom and enclose between purlin on the support bar in the described step 4, then the top layer steel sheet pile is enclosed purlin and enclose to the intermediate layer between purlin on the support bar along vertical nose girder lifting.
Described intermediate layer steel sheet pile encloses purlin two, with first intermediate layer steel sheet pile enclose purlin lift enclose between purlin on the support bar to bottom after, second intermediate layer steel sheet pile enclosed purlin lifting enclose to the intermediate layer that first intermediate layer steel sheet pile encloses purlin between purlin on the support bar, then the top layer steel sheet pile is enclosed purlin and enclose to the intermediate layer that second intermediate layer steel sheet pile encloses purlin between purlin on the support bar along vertical nose girder lifting.
The top of described elevation location bracket arranges vertical cushion block, in the step 4 the bottom steel sheet pile is enclosed purlin along vertical nose girder lifting to vertical cushion block top.
Described bottom steel sheet pile encloses purlin, top layer steel sheet pile and encloses purlin and intermediate layer steel sheet pile and enclose purlin and be equipped with and enclose the purlin inner bracing piece.
The present invention adopts individual layer to enclose purlin at the back court integral manufacturing, relies on drilled pile steel casing that vertical nose girder is set, and the vertical supporting bar guarantees that each layer encloses the spacing of purlin between purlin by enclosing, and successively the integral installation steel sheet pile encloses purlin from the bottom to top.Overcome in the prior art before the steel sheet pile inserted to play, enclosed the purlin installation under water not visible, the location is difficult, and multilayer is enclosed the difficult technical problem of purlin spacing control.Realized enclosing the beneficial effect that the purlin installation rate is fast, positioning accuracy is high.
Description of drawings
Fig. 1 is structural representation corresponding to method part among the present invention;
Fig. 2 is that A-A of Fig. 1 is to the sectional structure schematic diagram;
Fig. 3 is the use status architecture schematic diagram that structure division is corresponding among the present invention;
Fig. 4 is that A-A of Fig. 3 is to structural representation;
Fig. 5 is that B-B of Fig. 3 is to structural representation;
Fig. 6 is the first installation flow chart of method part among the present invention;
Fig. 7 is the second installation flow chart of method part among the present invention;
Fig. 8 is the 3rd installation flow chart of method part among the present invention;
Fig. 9 is the 4th installation flow chart of method part among the present invention;
Wherein, 1-steel sheet pile, 2-steel sheet pile enclose purlin, 2.1-bottom steel sheet pile and enclose purlin, 2.2-top layer steel sheet pile and enclose purlin, 2.3-intermediate layer steel sheet pile and enclose purlin, 3-steel casing, 4-guiding device, 5-enclose purlin inner bracing piece, 6-steel sheet pile guiding slot port suitable for reading, 7-intermediate layer and enclose support bar between purlin, 7.1-bottom and enclose support bar between purlin, 8-upper end horizontal support, 9-vertical nose girder, 10-vertical cushion block, 11-elevation location bracket, 12-lower end horizontal support, 13-nose girder lower end and support arc.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples:
Steel sheet-pile cofferdam shown in Fig. 1 ~ 5 encloses the purlin installation and guide device under water, comprise vertical nose girder 9, be arranged on vertical nose girder 9 inside top upper end horizontal support 8, be arranged on inboard, vertical nose girder 9 bottom lower end horizontal support 12, be arranged on the elevation location bracket 11 in the vertical nose girder 9 bottoms outsides, the inboard of lower end horizontal support 12 is provided with the nose girder lower end and supports arc 13.Because the upper end of above-mentioned vertical nose girder 9 is welded on the steel casing 3 more than the water surface, just guaranteed the stable of self, it is in order to guarantee that vertical nose girder 9 is less in flow action lower swing amplitude that nose girder lower end support arc 13 is done camber.
In the technique scheme, the top of elevation location bracket 11 is provided with vertical cushion block 10.Be used for placing steel sheet pile on the vertical cushion block 10 and enclose the purlin assembly.
Above-mentioned upper end horizontal support 8, vertical nose girder 9, vertical cushion block 10, elevation location bracket 11 and lower end horizontal support 12 consist of guiding device 4
A kind of utilize that above-mentioned steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, shown in Fig. 6 ~ 8, it comprises the steps:
Step 1: utilize the steel casing 3 of the pier periphery of drilled pile construction stage use, as the guide pile of guiding device 4;
Step 2: enclose the absolute altitude of purlin 2.1 and the design attitude of steel sheet-pile cofferdam according to the bottom steel sheet pile, guiding device 4 upper end horizontal supports 8 are fixed on the corresponding position of steel casing 3, the nose girder lower end of guiding device 4 is supported arc 13 and is matched with steel casing 3;
Step 3: be fixedly connected with bottom at the top that the bottom steel sheet pile encloses purlin 2.1 in advance and enclose support bar 7.1 between purlin;
Step 4: with the bottom steel sheet pile enclose purlin 2.1 along vertical nose girder 9 liftings, transfer to guiding device 4 elevation location brackets 11 tops, again the top layer steel sheet pile is enclosed purlin 2.2 along vertical nose girder 9 liftings, transfer to bottom and enclose between purlin on the support bar 7.1; (this design is applicable to carry out the cofferdam at depth of water 4-7m place and encloses the purlin construction);
Step 5: after steel sheet pile encloses purlin 2 installations, carry out the construction of steel sheet pile 1 inserted to play, until steel sheet pile cofferdam construction is finished in closure.
In the above-mentioned steps 5, the construction of the inserted to play of steel sheet pile 1 utilizes steel sheet pile guiding slot port 6 guiding suitable for reading.The form of construction work of described steel sheet pile 1 is the construction of monolithic inserted to play.
In the step 3 of technique scheme: simultaneously be fixedly connected with the intermediate layer at the top that the intermediate layer steel sheet pile encloses purlin 2.3 in advance and enclose support bar 7 between purlin; In the described step 4 after the bottom steel sheet pile encloses purlin 2.1 and is mounted to elevation location bracket 11 tops, the intermediate layer steel sheet pile is enclosed purlin 2.3 to be lifted to bottom and encloses between purlin on the support bar 7.1, then the top layer steel sheet pile is enclosed purlin 2.2 and enclose to the intermediate layer between purlin on the support bar 7 along vertical nose girder 9 liftings, (this design be applicable to carry out at the depth of water 7 ~ 10m place cofferdam enclose purlin construct).
In the technique scheme, the intermediate layer steel sheet pile encloses purlin 2.3 two, with first intermediate layer steel sheet pile enclose purlin 2.3 lift enclose between purlin on the support bar 7.1 to bottom after, second intermediate layer steel sheet pile enclosed purlin 2.3 lifting to be enclosed to the intermediate layer that first intermediate layer steel sheet pile encloses purlin 2.3 between purlin on the support bar 7, then the top layer steel sheet pile is enclosed purlin 2.2 and enclose to the intermediate layer that second intermediate layer steel sheet pile encloses purlin 2.3 between purlin on the support bar 7 along vertical nose girder 9 liftings, (this design be applicable to carry out at the depth of water 10 ~ 15m place cofferdam enclose purlin construct).
In the technique scheme, the top of elevation location bracket 11 arranges vertical cushion block 10, in the step 4 the bottom steel sheet pile is enclosed purlin 2.1 along vertical nose girder 9 liftings to vertical cushion block 10 tops.
Technique scheme has successfully overcome before the steel sheet pile inserted to play, encloses the technical problem that the purlin installation is not visible, the location is difficult, multilayer is enclosed purlin spacing control difficulty under water.
In the technique scheme, front according to steel sheet-pile cofferdam design physical dimension in step 1, plan-position and the gradient of in-site measurement drilled pile steel casing, the length dimension of horizontal support 8 and lower end horizontal support 12 on calculating.According to calculated data, vertical nose girder 9, upper end horizontal support 8, lower end horizontal support 12, elevation location bracket 11, nose girder lower end are supported arc 13 and vertical cushion block 10 be assembled into integral body by said structure at processing space.
In the technique scheme, the bottom steel sheet pile encloses purlin 2.1, top layer steel sheet pile and encloses purlin 2.2 and intermediate layer steel sheet pile and enclose purlin 2.3 and be equipped with and enclose purlin inner bracing piece 5.This encloses purlin inner bracing piece 5 and is used for strengthening the intensity that steel sheet pile encloses purlin 2.
The present invention adopts and props up first method construction steel sheet pile cofferdam, namely is in place first at steel sheet pile 1 inserted to play front wall purlin, encloses purlin in directly adopting and supports as steel sheet pile 1 inserted to play guiding device, enclose purlin rigidity large, be not easy distortion, guide effect is good, and steel sheet pile 1 inserted to play quality easily guarantees; Steel sheet pile 1 inserted to play front wall purlin all is in place, and pump process Steel Sheet Pile 1 suffered water pressure is directly delivered to encloses on the purlin; The construction of drawing water can once not finished and need be interrupted, and efficiency of construction is high.
The content that this manual is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (7)
1. a steel sheet-pile cofferdam encloses the purlin installation and guide device under water, it is characterized in that: comprise vertical nose girder (9), be arranged on vertical nose girder (9) inside top upper end horizontal support (8), be arranged on vertical nose girder (9) inboard, bottom lower end horizontal support (12), be arranged on the elevation location bracket (11) in vertical nose girder (9) the bottom outside, the inboard of described lower end horizontal support (12) is provided with the nose girder lower end and supports arc (13).
2. steel sheet-pile cofferdam according to claim 1 encloses the purlin installation and guide device under water, it is characterized in that: the top of described elevation location bracket (11) is provided with vertical cushion block (10).
One kind utilize that the described steel sheet-pile cofferdam of claim 1 encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that, it comprises the steps:
Step 1: utilize the steel casing (3) of the pier periphery of drilled pile construction stage use, as the guide pile of guiding device (4);
Step 2: enclose the absolute altitude of purlin (2.1) and the design attitude of steel sheet-pile cofferdam according to the bottom steel sheet pile, guiding device (4) upper end horizontal support (8) is fixed on the corresponding position of steel casing (3), the nose girder lower end of guiding device (4) is supported arc (13) and is matched with steel casing (3);
Step 3: be fixedly connected with bottom at the top that the bottom steel sheet pile encloses purlin (2.1) in advance and enclose support bar between purlin (7.1);
Step 4: the bottom steel sheet pile is enclosed purlin (2.1) lift, transfer to guiding device (4) elevation location bracket (11) top along vertical nose girder (9), again the top layer steel sheet pile is enclosed purlin (2.2) and lift, transfer to bottom along vertical nose girder (9) and enclose on the support bar between purlin (7.1);
Step 5: after steel sheet pile encloses purlin (2) installation, carry out the construction of steel sheet pile (1) inserted to play, until steel sheet pile cofferdam construction is finished in closure.
According to claim 3 utilize that steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that: be fixedly connected with the intermediate layer at the top that the intermediate layer steel sheet pile encloses purlin (2.3) in advance simultaneously in the described step 3 and enclose support bar between purlin (7); In the described step 4 after the bottom steel sheet pile encloses purlin (2.1) and is mounted to elevation location bracket (11) top, the intermediate layer steel sheet pile is enclosed purlin (2.3) lift to bottom and enclose on the support bar between purlin (7.1), then the top layer steel sheet pile is enclosed purlin (2.2) and enclose on the support bar between purlin (7) to the intermediate layer along vertical nose girder (9) lifting.
According to claim 4 utilize that steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that: described intermediate layer steel sheet pile encloses purlin (2.3) two, with first intermediate layer steel sheet pile enclose purlin (2.3) lift to bottom enclose support bar between purlin (7.1) upper after, second intermediate layer steel sheet pile enclosed purlin (2.3) lifting to the intermediate layer that first intermediate layer steel sheet pile encloses purlin (2.3) enclose on the support bar between purlin (7), then the top layer steel sheet pile is enclosed purlin (2.2) and enclose on the support bar between purlin (7) to the intermediate layer that second intermediate layer steel sheet pile encloses purlin (2.3) along vertical nose girder (9) lifting.
According to claim 3 or 4 or 5 described utilize that steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that: the top of described elevation location bracket (11) arranges vertical cushion block (10), in the step 4 the bottom steel sheet pile is enclosed purlin (2.1) along vertical nose girder (9) lifting to vertical cushion block (10) top.
According to claim 5 utilize that steel sheet-pile cofferdam encloses the purlin installation and guide device under water enclose the purlin localization method, it is characterized in that: described bottom steel sheet pile encloses purlin (2.1), top layer steel sheet pile and encloses purlin (2.2) and intermediate layer steel sheet pile and enclose purlin (2.3) and be equipped with and enclose purlin inner bracing piece (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210404769.0A CN102926387B (en) | 2012-10-22 | 2012-10-22 | Mounting and guiding device and positioning method for underwater circuit purlins of steel sheet pile cofferdam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210404769.0A CN102926387B (en) | 2012-10-22 | 2012-10-22 | Mounting and guiding device and positioning method for underwater circuit purlins of steel sheet pile cofferdam |
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| CN102926387B CN102926387B (en) | 2014-11-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104727331A (en) * | 2015-03-04 | 2015-06-24 | 中交第二航务工程局有限公司 | Round end type steel sheet pile cofferdam structure with arch effect and construction method thereof |
| CN104895083A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Underwater pile-cap foundation pit guide frame and cofferdam support construction method thereof |
| CN106013192A (en) * | 2016-06-15 | 2016-10-12 | 中铁港航局集团有限公司 | Method of constructing cofferdam after integrally lowering multiple layers of inner bracings of steel sheet pile cofferdam |
| CN110387872A (en) * | 2019-06-11 | 2019-10-29 | 中交第二航务工程局有限公司 | A kind of novel multi-layer waling steel sheet pile construction method |
| CN111139848A (en) * | 2020-01-02 | 2020-05-12 | 中铁二局第五工程有限公司 | Steel cofferdam and assembling method thereof |
| CN114718097A (en) * | 2022-04-25 | 2022-07-08 | 中交第二航务工程局有限公司 | Quick positioning method for deep water steel cofferdam or open caisson |
| CN115125957A (en) * | 2022-05-30 | 2022-09-30 | 中建一局集团建设发展有限公司 | Deep water cofferdam enclosing purlin and inner support assembling and lowering device and using method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104727331A (en) * | 2015-03-04 | 2015-06-24 | 中交第二航务工程局有限公司 | Round end type steel sheet pile cofferdam structure with arch effect and construction method thereof |
| CN104895083A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Underwater pile-cap foundation pit guide frame and cofferdam support construction method thereof |
| CN106013192A (en) * | 2016-06-15 | 2016-10-12 | 中铁港航局集团有限公司 | Method of constructing cofferdam after integrally lowering multiple layers of inner bracings of steel sheet pile cofferdam |
| CN110387872A (en) * | 2019-06-11 | 2019-10-29 | 中交第二航务工程局有限公司 | A kind of novel multi-layer waling steel sheet pile construction method |
| CN110387872B (en) * | 2019-06-11 | 2021-07-27 | 中交二航局第一工程有限公司 | Multilayer wailing steel sheet pile construction method |
| CN111139848A (en) * | 2020-01-02 | 2020-05-12 | 中铁二局第五工程有限公司 | Steel cofferdam and assembling method thereof |
| CN114718097A (en) * | 2022-04-25 | 2022-07-08 | 中交第二航务工程局有限公司 | Quick positioning method for deep water steel cofferdam or open caisson |
| CN114718097B (en) * | 2022-04-25 | 2023-09-22 | 中交第二航务工程局有限公司 | Quick positioning method for deepwater steel cofferdam or open caisson |
| CN115125957A (en) * | 2022-05-30 | 2022-09-30 | 中建一局集团建设发展有限公司 | Deep water cofferdam enclosing purlin and inner support assembling and lowering device and using method thereof |
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